Sash-fastener.



R0 841,655. PATENTED JAN. 22, 1907.

G. W. ADAMSON.

SASH PASTBNBR.

APPLICATION EILBD OOT.6, 190s.

WITNESSES: Z2 [/VVE/VTOR. 4, 9 l By F A from/5 Y5 UNITED sra rns PATENTorrroia.

SASH-FASTENER.

Specification of Letters Patent.

Patented Jan. 22, 1907.

Application filed October 6, 1906. Serial No 337.806-

T0 all whom, it may concern:

Be it known that I, GEORGE WARNER ADAMSON, a citizen of the UnitedStates, re-

siding at Crider, in the county of Caldwell and State of Kentucky, haveinvented a new and useful Sash-Fastener, of which the fol lowing is aspecification.

This invention relates to sash-fasteners; and its object is to provide asimple, durable, and inexpensive device of this character which can bereadily fastened to a sash and which will securely lock it in closedposition or support it in any position to which it may be raised,thereby rendering it particularly adaptable for use in connection withsashes to which balancing-weights are not secured.

With the foregoing and other objects in view the invention consists ofcertain novel features of construction and combinations of parts, whichwill be hereinafter more fully de scribed, and pointed out in theclaims.

In the accompanying drawings is shown the preferred form of theinvention.

In said drawings, Figure 1 is an elevation of the fastener, showing thesame in position upon a sash and looking it in lowered posi tion. Fig. 2is a similar view showing the fastener positioned to support the sash ina raised position. Fig. 3 is an end elevation of the pivoted member ofthe lock, and Fig. 4 is a perspective view of the fixed member thereof.

Referring to the figures by characters of reference, A is'a sash, and Bis the stop-strip of the window-frame C. Sesured to the sash A is ascrew 1 or other suitable device constituting the pivot for the movablemember of the lock, and this device has a head which is adapted totravel within the countersunk outer end 2 of a curved slot 3, formedwithin the central portion 4 of the movable fastener 5. A substantiallycircular extension 6 ex tends from the central portion 4 and constitutesa weight, while another extension 7 projects from the opposite end ofthe portion 4 and has a curved working face 8, disposed eccentrically inrelation to the slot 3. A re cess 9 is formed within the curved face 8of the extension 7 at one side of the center thereof, and this recess isof gradually-increasing depth from its upper to its lower end, saidlower end being disposed adjacent the center of the face 8 and having anoverhanging wall 10, which constitutes a hook for the purposehereinafter more fully set forth.

A small plate 11 is seated within a suitable recess in the stop-strip Band has a spur 12 at one end and an opening 13 to receive a screw 14,whereby the plate may be securely fastened in position. A downturnedhook 15 extends from the upper portion of this plate and in the sameplane as the recess 9, so that under certain conditions said hook willproject into the recess and overlap and engage the overhanging wall 10thereof.

When it is desired to lock the s ash in lowered position, the member 5is swung in the direction indicated by the arrow in Fig. 1, and theweight 6 will cause the recessed face of the cam portion 7 to engage thehook 15, the projection 1 acting as a pivot and bearing against theupper end of the slot 3. It will be apparent that when the parts are inthis position it will be impossible to raise the sash, because the hook15 will engage the overhanging wall 10 of the recess 9. Should it bedesired to raise the sash, the weight extension 6 is swung upward, so asto disengage the wall 10 from the hook 15, and after the sash has beenhoisted a sufficient distance to move the two members apart the weightextension 6 can be released, and the cam extension 7 will then slidealong the stop-strip B without, however, interfering w1th the raising ofthe window-sash. Should it be desired to hold the sash in raisedposition, it is merely neces- 1 and said stop-strip and cause the partsto assume the position shown in Fig. 2. The windew-sash will then beheld firmly in raised position and can only be lowered by first pushingthe sash upward a short distance and then swinging the wei ht extension6 upward, so as to remove t e cam extension from engaging position.

The utmost importance is attached to the particular form and arrangementof the slot 3, because by providing a curved slot between the cam andwedge portions of the fastener the device is rendered doubly effective,because when the projection 1 travels downward within the slot it ridesupon the lower curved wall thereof and tends to push the cam portionagainst the window-frame, thereby supplementing the clamping action ofthe cam. As a result of this arrangement it becomes unnecessary toemploy felt, rubber, or other soft material upon the window-flame to actas a holding means, and it is also unnecessary to employ springs orother like desary to release it, whereupon the cam extension 7 will byreason of its frictional contact I with thestop-strip B wedge betweenthe pivot vices upon the cam for throwing it into operative position.

It Will be seen that this fastener is very simply constructed, can bereadily connected to a Window, and is very efficient both as a lock andas a sash-support.

It Will be noticed by referring to Fig. 3 that an enlargement 16 isformed upon the inner face of the member 5, so that the same is heldaway from the sash and Will not mar it by reason of contact therewith.

The preferred form of the invention has been set forth in the foregoingdescription: but I do not limit myself thereto, as I am aware thatmodifications may be made therein Without departing from the spirit orsacrificing the advantages thereof, and I there fore reserve the rightto make such. changes as fairly fall Within the scope of the claims.

Having thus described my invention, What is claimed is- 1. A sashfastener and support comprising a plate, a hooked extension projectingtherefrom, a pivot, a movable member having a curved slot thereinconstituting a seat for the pivot, oppositely-arranged Weight and camportions integral with the movable member,

the W orlzing face of said cam portion and the Walls of the slide beingformed along converging curves, the Working face of said cam having arecess therein adapted to receive and engage the hooked extension.

2. A sash-support comprising an intermediate portion having a curvedslotv therein, a Weight portion extending from one end of saidintermediate portion and a combined Wedge and cam portion extending fromthe opposite end thereof, the Working face of said cam portion beingdisposed eccentrieally in relation to the slot and adapted to bear upona structure to support a sash in raised position.

In testimony that I claim the foregoing as my own I have hereto afiixedmy signature in the presence of tWo Witnesses.

, his GEORGE WARNER ADAMSON.

mark Vvltnesses R. H. MOORE, J. H. LEEOH.

